Use Additional code to identify presence of hypertension (I10-I16)

  1. I22 Subsequent ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction

    Use Additional code, if applicable, to identify:
    exposure to environmental tobacco smoke (Z77.22)
    history of tobacco dependence (Z87.891)
    occupational exposure to environmental tobacco smoke (Z57.31)
    status post administration of tPA (rtPA) in a different facility within the last 24 hours prior to admission to current facility (Z92.82)
    tobacco dependence (F17.-)
    tobacco use (Z72.0)

    Includes:

    • acute myocardial infarction occurring within four weeks (28 days) of a previous acute myocardial infarction, regardless of site
    • cardiac infarction
    • coronary (artery) embolism
    • coronary (artery) occlusion
    • coronary (artery) rupture
    • coronary (artery) thrombosis
    • infarction of heart, myocardium, or ventricle
    • recurrent myocardial infarction
    • reinfarction of myocardium
    • rupture of heart, myocardium, or ventricle
    • subsequent type 1 myocardial infarction

    Excludes1

    • subsequent myocardial infarction, type 2 (I21.A1)
    • subsequent myocardial infarction of other type (type 3) (type 4) (type 5) (I21.A9)
    1. I22.0 Subsequent ST elevation (STEMI) myocardial infarction of anterior wall

      Inclusion term(s):

      • Subsequent acute transmural myocardial infarction of anterior wall
      • Subsequent transmural (Q wave) infarction (acute)(of) anterior (wall) NOS
      • Subsequent anteroapical transmural (Q wave) infarction (acute)
      • Subsequent anterolateral transmural (Q wave) infarction (acute)
      • Subsequent anteroseptal transmural (Q wave) infarction (acute)
    2. I22.1 Subsequent ST elevation (STEMI) myocardial infarction of inferior wall

      Inclusion term(s):

      • Subsequent acute transmural myocardial infarction of inferior wall
      • Subsequent transmural (Q wave) infarction (acute)(of) diaphragmatic wall
      • Subsequent transmural (Q wave) infarction (acute)(of) inferior (wall) NOS
      • Subsequent inferolateral transmural (Q wave) infarction (acute)
      • Subsequent inferoposterior transmural (Q wave) infarction (acute)
    3. I22.2 Subsequent non-ST elevation (NSTEMI) myocardial infarction

      Inclusion term(s):

      • Subsequent acute subendocardial myocardial infarction
      • Subsequent non-Q wave myocardial infarction NOS
      • Subsequent nontransmural myocardial infarction NOS
    4. I22.8 Subsequent ST elevation (STEMI) myocardial infarction of other sites

      Inclusion term(s):

      • Subsequent acute transmural myocardial infarction of other sites
      • Subsequent apical-lateral transmural (Q wave) myocardial infarction (acute)
      • Subsequent basal-lateral transmural (Q wave) myocardial infarction (acute)
      • Subsequent high lateral transmural (Q wave) myocardial infarction (acute)
      • Subsequent transmural (Q wave) myocardial infarction (acute)(of) lateral (wall) NOS
      • Subsequent posterior (true) transmural (Q wave) myocardial infarction (acute)
      • Subsequent posterobasal transmural (Q wave) myocardial infarction (acute)
      • Subsequent posterolateral transmural (Q wave) myocardial infarction (acute)
      • Subsequent posteroseptal transmural (Q wave) myocardial infarction (acute)
      • Subsequent septal NOS transmural (Q wave) myocardial infarction (acute)
    5. I22.9 Subsequent ST elevation (STEMI) myocardial infarction of unspecified site

      Inclusion term(s):

      • Subsequent acute myocardial infarction of unspecified site
      • Subsequent myocardial infarction (acute) NOS
Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.